Product Description
The CARDONE 21-5256 Remanufactured Power Steering Pump is engineered to restore factory-original steering performance through precision remanufacturing and rigorous testing. Every pump undergoes a full inspection to identify potential improvements over the OE design, and upgraded components are incorporated when applicable.
Critical internal components—including campacs and spool valves—are triple-tested for durability. The unit features 100% new premium HNBR seals and O-rings, which resist high-temperature breakdown and prevent leaks far more effectively than standard sealing materials. The pump’s precisely surfaced shaft minimizes premature seal wear, extending service life.
Each pump is equipped with a fully tested and calibrated pressure relief valve, and final assembly is computer-tested for flow, pressure, bypass operation, noise, and steering effort. CARDONE’s environmentally responsible remanufacturing process reduces raw material and energy usage by up to 80% compared to manufacturing a new pump.
Key Features
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Triple-tested internal components ensure dependable hydraulic performance.
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HNBR premium seals protect against leaks and heat-related breakdown.
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Precision-machined shaft prevents early seal wear and improves pump longevity.
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Calibrated pressure relief valve guarantees proper power assist levels.
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Computer-verified performance testing ensures OE-level operation.
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Direct-fit design matches original vehicle specifications for easy installation.
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Eco-friendly remanufactured construction reduces environmental impact.
Technical Specifications
| Spec |
Detail |
| Filter Included |
No |
| Hose Port Type |
Washer |
| Housing Material |
Cast Iron/Aluminum |
| Inlet Attachment Type |
Barb |
| Inlet Diameter |
0.573 IN (14.5542 MM) |
| Inlet Quantity |
1 |
| Mounting Hardware Included |
No |
| Outlet Attachment Type |
Threaded |
| Outlet Quantity |
1 |
| Outlet Thread Size |
20x1.5 |
| Pulley Attachment Type |
Bolt-On |
| Pulley Belt Type |
Serpentine |
| Pulley Included |
No |
| Remote Reservoir |
No |
| Reservoir Included |
No |
| Reservoir Cap Included |
No |
| Shaft Type |
Splined |
| Type |
Hydraulic |
OE Cross References
Lexus: 4432030580
Vehicle Compatibility
| Year |
Make |
Model |
Engine |
Notes |
| 1998–2005 |
Lexus |
GS300 |
3.0L |
Reservoir Not Included; Install Filter & Use OE Fluid; Flush System Before Installation |
Installation & Warranty Notes
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Always flush the power steering system before installation to remove old fluid and contaminants.
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Use only manufacturer-approved power steering fluid to prevent noise and premature failure.
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Install an in-line steering filter to ensure warranty protection and maximize pump life.
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Check hoses, reservoir condition, and belt tension to ensure a successful installation.
